<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片式 -->
    <el-card>
      <!-- 图表区域 -->
      <div id="reports" :style="{width: '800px', height: '500px'}"></div>
    </el-card>  
  </div>
</template>
<script>
// 用于合并两个对象
import _ from 'lodash'
export default {
  data() {
    return {
      // 需要合并的选项
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      },
      
    }
  },
  mounted() {
    this.getGoodsReports()
  },
  methods: {
    getGoodsReports() {
      // 基于准备好的dom，初始化echarts实例
        let myCharts = this.$echarts.init(document.getElementById('reports'))
        // 绘制图表
        this.$http.get('reports/type/1').then(res => {
          if(res.data.meta.status !== 200) {
            this.$message.error(res.data.meta.msg)
          }else {
            this.$message.success(res.data.meta.msg)
            // _.merge 合并两个对象
            const result = _.merge(res.data.data, this.options)
            myCharts.setOption(result)
          }
        })
        // reports.setOption({
    }
  },
}
</script>
<style lang="scss" scoped>
  
</style>